About
26
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Introduction
Samet Kalkan has a PhD degree from Istanbul University, Institute of Graduate Studies in Science and Engineering, Department of Marine Biology. He currently works as a researcher at Recep Tayyip Erdoğan University- Faculty of Fisheries, Department of Marine Biology since 2016.
Current institution
Additional affiliations
February 2011 - present
Education
April 2015 - April 2019
Publications
Publications (26)
This study focused on marine sediments from the Black Sea, mainly due to bacterial diversity-induced public health / biotechnology application value. Sediment samples were gathered from 14 locations at differing depths across Turkish shores on a seasonal basis over 10 months, with bacterial identifications performed through using multimodal analyti...
The Black Sea is unfortunately globally established as a highly polluted sea, with contaminants from various sources polluting its marine sediments. This study aimed at analyzing heavy metal resistance levels by heterotrophic bacteria colonizing marine sediments across Black Sea shores within Turkey. Twenty-nine bacterial samples from marine sedime...
Marine sediments are important reservoirs for antibiotics and heavy metals. Bacteria play a key role in polluted sedimentary habitats. This study aimed to identify heavy metal and antibiotic resistance in marine sediment bacteria isolated from Gökçeada Island in Turkiye. The samples were collected seasonally from 10 different sampling stations in 2...
Marine sediments are the important reservoirs of antibiotics and resistant genes. Antibiotic resistance becomes a global concern today and bacteria from marine sediments show resistance to multiple microbial agents. This study investigates antibiotic resistance of Gram-negative heterotrophic bacteria from the marine sediment of the Black Sea. The s...
The objective of this study is to investigate the quality differences and visual characteristics between cultured gilthead sea bream obtained from earthen ponds and net cage habitats. No significant differences from obtained in two different habitats are determined cultured gilthead sea bream in terms of chemical and microbiological quality. It has...
The distribution and antibacterial activities of bacteria isolated from fifty-five marine sponge samples collected from the Aegean Sea and the Sea of Marmara were investigated in the period between 2011 and 2013. The antibacterial activities of the methanolic extracts of marine sponge-associated bacteria tested against six pathogenic bacteria: Stap...
Sucul ekosistemlerde bakterilerin organik maddelerin bozunma süreçlerinde ve besin yenilenmesinde önemli bir role sahip olduğu bilinmektedir. Bu sebeple bakteriyel fonksiyonların tanımlanması için çevresel koşulların değişkenliği-ne bağlı olarak bakteriyel metabolik cevabın farklılığını ortaya koymak deniz ekosisteminin bakteriyolojik verilerle tan...
Heavy metal and antibiotic-resistant bacteria have potential for environmental bioremediation applications. Resistant bacteria were investigated in sediment and seawater samples taken from the Aegean Sea, Turkey, between 2011 and 2013. Bioindicator bacteria in seawater samples were tested using the membrane filtration technique. The spread plate te...
In aquatic ecosystems, bacteria are known to play an important role in the degradation processes of organic substances and in nutritional regeneration. For this reason, it is important to define the functioning of the marine ecosystem to determine the difference of bacterial metabolic response depending on the variability of environmental Abstract...
The composition and metabolic properties of cultivable heterotrophic aerobic bacteria, the levels of indicator bacteria, and physicochemical parameters were investigated in the seawater samples collected from 20 stations in coastal areas of the eastern part of the Black Sea, Turkey, between May 2017 and February 2018. The levels of indicator bacter...
Yüzen makro deniz çöplerinin çok ciddi ekolojik ve sosyo-ekonomik etkileri
dolayısı ile AB Deniz Stratejisi Çerçeve Direktifi altındaki değerlendirme
kriterlerinden biridir. Toplamda 21 ülkenin drenaj alanını oluşturan yarı kapalı
basen Karadeniz’de yüzen çöp konsantrasyonunun çok yüksek olduğundan
şüphelenilmektedir, ancak mevcut veriler henüz...
Floating litter has serious ecological and socioeconomic impacts and is recognized as assessment criteria under the EU Marine Strategy Framework Directive. Floating litter density is suspected to be very high in the Black Sea which is a semi-enclosed basin that received freshwater drainage from 21 countries. However, the available data are not yet...
The Çanakkale Strait, as a part of the Turkish Strait System (TTS), is an important water route in the world which connects the Mediterranean Sea to the Sea of Marmara and hence to the Black Sea via the Istanbul Strait. Due to its peculiar hydrodynamic characteristics, the area offers unique opportunities for researching profiles of bacteria under...
This study aimed to determine Micrococcaceae family members in the water column of Güllük Bay, Aegean Sea, Turkey under the coverage of the project supported by TUBITAK (The Scientific and Technical Research Council of Turkey-Project number:110Y243). The seawater samples collected under aseptic conditions from the surface (0-30 cm), middle (25-33 m...
In this study, Staphylococcaceae species was investigated in the sea water and sediment samples taken from Güllük Bay, the Aegean Sea, Turkey within the scope of a TUBITAK project (The Scientific and Technical Research Council of Turkey-Project number:110Y243) in the period between May 2011 and February 2013. The seawater samples collected througho...
Abstract. In this study, anthropogenic influences on the natural fresh water sources regarding the levels of indicator bacteria were investigated in the Eastern Anatolian, Turkey. The surface water samples (0–30 cm) were collected seasonally in the period between November 2008 and October 2009. The levels of total and faecal coliform bacteria were...
DIVERSITY of BACTERIA ISOLATED from TURKISH MARINE AREAS
Gülşen ALTUĞ, Pelin Saliha ÇİFTÇİ TÜRETKEN,
Sevan GÜRÜN, Samet KALKAN
Istanbul University, Fisheries Faculty, Department of Marine Biology, Istanbul, Turkey
galtug@istanbul.edu.tr
ABSTRACT
Bacterial diversity knowledge is very important in order to understand marine ecosystem functioning,...
In this study covering by TÜBTAK (Project Number:114Y690), bacteria isolates which were determined as tolerant against to oil hydrocarbons regarding to different pre-tests results were studied in advanced trials between the years of 2000-2015. Bacterial consortia were prepared after antagonistic tests of single-cultured
bacteria which were highly...
The sediments underlying the oxic, suboxic, and anoxic waters were collected with remotely operated vehicles (ROVs) in the southern Black Sea off Sinop and Ereğli, Turkey during the Nautilus expedition in summer 2011 and 2012. The sediment samples were analyzed to understand microbial diversity of these unique fields using by culture-dependent and...
The antimicrobial activity of the methanolic extracts of the 11 unit marine sponge samples belonging to six different species: Sarcotragus sp., Cacospongia scalaris (Schmidt, 1862), Axinella cannabina (Esper, 1794), Ircinia sp., Chondrosia reniformis (Nardo, 1847), Agelas oroides, (Schmidt, 1864) were screened against
Gram positive (Staphylococcus...
